Synthesis of anisotropic suboptimal controllers by convex optimization

Details Synthesis of anisotropic suboptimal controllers by convex optimization Synthesis of anisotropic suboptimal controllers by convex optimization

2011-08-25

arxiv.org/abs/1108.4982v4

Computer Science

Systems and Control

38 pages, 11 figures, 4 tables

Scientific paper

This paper considers a disturbance attenuation problem for a linear discrete time invariant system under random disturbances with imprecisely known probability distributions. The statistical uncertainty is measured in terms of relative entropy using the mean anisotropy functional. The disturbance attenuation capabilities of the system are quantified by the anisotropic norm which is a stochastic counterpart of the H-infinity norm. The designed anisotropic suboptimal controller generally is a dynamic fixed-order output-feedback compensator which is required to stabilize the closed-loop system and keep its anisotropic norm below a prescribed threshold value.

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